Red Brown Green Gold — 2.1 MΩ

Read left to right, starting from the end where the bands are grouped. The gold band is the tolerance and always sits alone at the far end.

What each band says

In a circuit

Surface-mount marking for the same value: 215.

If you misread one band

Brown and red, or orange and red, are easy to confuse under a desk lamp. These are the codes one band away from this one.

• Brown Brown Green1.1 MΩ
• Red Black Green2 MΩ
• Red Brown Orange21 kΩ
• Red Brown Yellow210 kΩ
• Red Brown Blue21 MΩ
• Red Brown Violet210 MΩ
• Red Red Green2.2 MΩ
• Red Orange Green2.3 MΩ